Valve-stem packing



T. WILSON VALVE STEM PACKING Filed May 25 1924 J5 l? Ja i-- J4 Patented'Dec. 15, 1924.

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LMTEN? FENCE..

THOMAS WILSON, OF liNDEN, LOUISIANA, ASSIGNOR TO THE MINDEN VALVE STEM PACKING COMEANY, ENC., OF M'INDEN, LOUISIANA.

VALVE-STEM PACKING.

Application filed May 23,

To all fio/om 79mg/ conce/m:

Be it known that I, Tiroirns VViLsoN, a citizen or' the United States, residing at lviinden, in the parish or" lillebster and State oi" Louisiana, have invented a nevi' and usei'ul Valve-Stem Packing, ot which the tolloiving is a specification.

rlhis invention relates to valve stem packing, and .-'ns to provide novel means to insure against movement et the valve stern and packing carried thereby independently or the valve sleeve in which the packing operates.

Another object of the invention is to provide improved means tor securing the packing rings to the valve stem ina manner to elii'ninate any possibility of the rings moving longitudinallg7 ot the valve stem on which they are positioned.

llVith the foregoing and other objects in view which Will appear as the description proceeds, the invention resides in the combination and arrangement or' parts and in the details or construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, ma37 be made Within the scope of what is claimed, Without departing from the spirit of the invention.

Referring to the drawing:

Figure l is a longitudinal sectional vieu7 through a stuffing box disclosing a valve stem as operating therethrough.

Figure 2 is a sectional view taken on line ot Figure l.

Figure 3 is a ragmental perspective View disclosing the valve stem.

Figure il is a perspective View of the key employed for securing the packing rings to the valve stem.

Figure 5 is a perspective View ot' one of the packing rings.

Referring to the drawing in detail, the reference character 5 indicates a valve stem which is provided with an enlargement defining a shoulder (i against which the packing rings are held, the packing rings being indicated at 7.

The valve stem is provided With a transversely disposed opening 8 which has an 1924. Serial N0. 715,411.

inclined Wall adapted to engage an inclined edge of the ke'v 9 that in operation is disposed Within the opening, the key contacting with one of the packing members to torce them to their active positions on the vaive stern 5.

The reference character l() illustrates the stuiiing box in Whichone end of the sleeve l1 is positioned, the sleeve being provided with a circumferential rib i2 adapted to engage one edge of the stuffing box l() to restrict movement ot the sleeve Within the stuiiing box.

Forming a part or the stuing box is a removable member 13 Which is provided with an oils-et portion disposed adjacent to one end thereof, which offset portion acroniini/)dates the circumferential. rib of the sleeve li to prevent movement or the sleevel away troni the member l0.

Studs leentend through openings in the reniovable member 13 and have their threaded ends l5 positioned in suitable threaded openings in the member l0, whereupon the member 13 may be securely held in position and the sleeve ll locked against movement, longitudinally or the valve stem 5. In order that the packing rings When positioned on the valve stem 5 may be readily inserted in the sleeve, the inner edges of the sleeve at points adjacent to the ends thereof, are beveled as at 16 providing a clearance tor the rings, when entering the sleeve.

in the use of the device, suitable packing rings are positioned on the valve stem and moved into engagement- With the shoulder (5. ilhe key is now driven into the opening 5 with the result that a Wedging action is set up between the key and rings to torce the rings against the shoulder' and insure against inovement ot the rings independent-- lv ot' the valve stem The valve stem together with the packing now positioned in the sleeve ll, and it Will he obvious that due to the manner of supporting the sleeve, the sleeve Will be held securel)T against movement When the valve stem is in operation.

i claim ln a device ot the character described, a

stuiing box, aV sleeve in the stuiing box, a the paeking rings into engagement With the 10 removable member Jfor engaging the sleeve shoulder.

to hold the sleeve in position, a valve stem In testimony that I claim the foregoing operating through the sleeve, packing rings as my own, I have hereto ailixed my signaon the valve stem, said valve stem having a ture in the presence of t-Wo Witnesses.

slioulderto be engaged by the packing rings THOMAS VILSON. to restrietmovement of the packing yrings lVitnesses: with respect to the valve stem, and a key eX- I). W. LAWHON,

tenolingy ,through the valve stem for movingA J. BENNETT JOHNSON, 

